CN202902248U - Boiler with flue gas condensed waste heat recovery function - Google Patents
Boiler with flue gas condensed waste heat recovery function Download PDFInfo
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- CN202902248U CN202902248U CN2012206447180U CN201220644718U CN202902248U CN 202902248 U CN202902248 U CN 202902248U CN 2012206447180 U CN2012206447180 U CN 2012206447180U CN 201220644718 U CN201220644718 U CN 201220644718U CN 202902248 U CN202902248 U CN 202902248U
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- flue gas
- boiler
- waste heat
- heat recovery
- steam generator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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Abstract
The utility model discloses a boiler with a flue gas condensed waste heat recovery function, which belongs to the technical field of boiler heat transmission. The device comprises a condensed waste heat recovery device and a steam generator, wherein the condensed waste heat recovery device is arranged on a flue gas outlet of the steam generator, and is integrated with the steam generator; and a condensed liquid collector is arranged in the condensed waste heat recovery device. The boiler with the flue gas condensed waste heat recovery function has the advantages that the condensed waste heat recovery device is integrated with the steam generator, the structure is compact, heat energy in discharged smoke can be high-efficiently recovered, hazardous substances in the discharged smoke is reduced, the corrosion resistance is strong, the construction cost is saved, and simultaneously, the condensed liquid collector on the bottom part can be used for effectively collecting condensed liquid, so that a heating face on a tail part of the boiler is protected.
Description
Technical field
The utility model relates to a kind of device of boiler heat-transfer technical field, is a kind of boiler with flue gas condensing function of recovering waste heat specifically.
Background technology
The exhaust gas temperature of conventional boiler is generally 150～250 ℃ at present, generally all contains the steam of high enthalpy in these flue gases, and the steam of these superheat states can not be condensed into liquid water and emit the latent heat of vaporization.Directly high-temperature flue gas is emitted then and can cause thermal waste, the while is the easy weighting ring environment pollution because containing a certain amount of carbon dioxide and nitride in the flue gas also.Generally process by smoke condensing waste heat recovering device, utilize the lower water of temperature or air cooled flue gas, the realization flue-gas temperature reduces, near the heat-transfer surface zone, water vapour condensation in the flue gas realize that simultaneously obvious heat of smoke discharges and water recovery latent heat discharges, and water or air in the heat exchanger is heated, realize heat energy recycle, improve boiler thermal output.
In the prior art, the general split pattern that adopts arranges the condensation waste-heat recovery device, being about to the condensation waste-heat recovery device is arranged in the boiler tail exit flue path, but such plant area area is large, manufacturing cost is increased, flue also increases the flow resistance of flue gas easily simultaneously, has strengthened radiation loss.When Flue duct design or when making fixing link and dealing with improperly, the acid condensate liquid of flue gas may jeopardize the back-end surfaces of boiler, and adopt the seamed or seamless steel pipes of hollows as the element of convection current and heat transfer in the existing condenser system device more, and the metal wall after condensation heat transfer occurs, do not have effective measures to tear condensate film yet, cause the film condensation heat transfer weak effect.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of compact conformation, can significantly reduces exhaust gas temperature, the heat energy in the high efficiente callback smoke evacuation, can effectively avoid the acid condensate liquid of flue gas to jeopardize the monoblock type fume afterheat condensation recovery boiler device of the back-end surfaces of boiler.
In order to achieve the above object, the technical scheme that adopts of the utility model is:
Boiler with flue gas condensing function of recovering waste heat, comprise steam generator and condensation waste-heat recovery device, in condensation waste-heat recovery device inside condensing heat exchanger and condensate collector are set, the outside thermal insulation layer that adopts, top is provided with cold water inlet and the final floss hole of flue gas, the bottom is provided with hot water outlet and flue gas condensing liquid floss hole, the condensation waste-heat recovery device is arranged on the steam generator smoke outlet, form one with steam generator, the condensing heat exchanger below arranges some layers of condensate collector in the condensation waste-heat recovery device.
Preferably, described steam generator is vertical steam generator.Adopt vertical steam engine to be convenient to be combined with condensing heat exchanger, high-temperature flue gas can spontaneously upwards be sent to condensing heat exchanger, need not to install additional blower unit, reduces energy consumption.
Preferably, the number of plies of described condensate collector is set to two layers.Can guarantee effectively that the collection of condensate liquid does not affect the upwards operation of high-temperature steam simultaneously.
Preferably, the profile of described condensate collector is spill.
Preferably, be connected with blowoff line below the described condensate collector.The condensate liquid of collecting can be transferred in the neutralization pond by blow-off line.
Preferably, described condensing heat exchanger heating surface adopts whole stainless steel helix fin tube bank.Stainless steel can better be protected heating surface not corroded and promote heat-transfer effect; fin structure is used for increasing the heat convection area and tears and is condensate in its surperficial liquid film; the thermal resistance that minimizing brings because of the flow boundary layer thickening increases surface coefficient of heat transfer, augmentation of heat transfer.
Preferentially, the tube bank of described helix fin is equilateral triangle and is staggered in arrangement.Staggered arrangement design by to tube bank can obtain the higher coefficient of heat transfer, and the enhanced heat exchange effect reduces exhaust gas temperature, and the condensate water that can effectively prevent from simultaneously discharging fume is condensed and the thermal resistance of increase heat exchange at fin.
The beneficial effects of the utility model are:
The utility model adopts condensation waste-heat recovery device and vertical steam generator is formed one, in the time of the problem such as the flue floor space that overcomes conventional condensing waste-heat recovery device is excessive, flow resistance is excessive, gas composition in the flue gas is condensed in the flue gas condensing process, and water absorbs or reaction, makes more environmental protection of fume emission.Inner condensing heat exchanger adopts anti-corrosion spiral finned tube, increases surface coefficient of heat transfer, augmentation of heat transfer.The condensate collector that arranges in the condensing heat exchanger bottom simultaneously can effectively be collected condensate liquid, prevents from corroding the boiler internal utensil.Be a kind of cheap for manufacturing cost, simplified Flue duct design and construction, optimized heat-transfer effect, the device of back-end surfaces that can fine protection boiler.
Description of drawings
Fig. 1 is the structural representation that the utlity model has the boiler of flue gas condensing function of recovering waste heat
Fig. 2 is the structural representation of the utility model condensation waste-heat recovery device
Among the figure, condensation waste-heat recovery device 1, vertical steam generator 2, hot water outlet 3, flue gas condensing liquid floss hole 4, cold water inlet 5, stainless steel helix fin tube bank 6, thermal insulation layer 7, condensing heat exchanger 8, condensate collector 9, final fume emission mouth 10.
The specific embodiment
The utility model comprises vertical steam generator 2 and condensation waste-heat recovery device 1, in condensation waste-heat recovery device 1 inside condensing heat exchanger 8 is set, the outside thermal insulation layer 7 that adopts, top is provided with cold water inlet 5 and the final floss hole 10 of flue gas, the bottom is provided with hot water outlet 3 and flue gas condensing liquid floss hole 4, condensation waste-heat recovery device 1 is arranged on vertical steam generator 2 smoke outlets, form one with vertical steam generator 2, condensing heat exchanger 8 belows arrange two layers of condensate collector 9 in the condensation waste-heat recovery device 1.
Be described in further detail below in conjunction with accompanying drawing 1,2 pairs of the utility model of accompanying drawing.
Condensation waste-heat recovery device 1 is cylindrical as shown in Figure 2, and the outside thermal insulation layer 7 that adopts is adiabatic, and inside arranges condensing heat exchanger 8.The heating surface of condensing heat exchanger 8 adopts whole stainless steel helix fin tube bank 6, is staggered in arrangement with equilateral triangle, and its effect is to reduce exhaust gas temperature to discharge fume condensate water in the fin cohesion and the thermal resistance of increase heat exchange with preventing.The high-temperature flue gas that burning produces in the vertical steam generator 2 as shown in Figure 1 passes two layers of condensate collector 9 that distribute and stagger, and then directly enters in the condensing heat exchanger 8.Simultaneously cooling water enters into stainless steel helix fin tube bank 6 by cooling water inlet 5 because stainless good heat transfer property, cooling water in stainless steel helical fin tube bank 6 with high-temperature flue gas generation heat exchange.Water vapor condensation in the high-temperature flue gas gets off, absorb simultaneously sulfur dioxide and the nitride of the part in the flue gas, rely on self gravitation to flow after the dewfall and fall into condensate collector 9, blow-off line by condensate collector 9 belows flows out from flue gas condensing liquid floss hole 4 again, leads at last neutralization pond.Cooling water heats up through heat exchange in the tube bank 6 of stainless steel helix fin, and the hot water of generation is then discharged as other water secondaries by hot water outlet 3 and utilized, and condensed flue gas is discharged by final fume emission mouth 10.
The utility model adopts smoke condensing waste heat recovering device and steam generator integrated design; minimizing takes up room; simplify Flue duct design; save construction cost; adopt the design of helix fin formula on the heat exchanger, the Effective Raise heat transfer effect, the bottom arranges condensate collector simultaneously; when not affecting boiler operatiopn and detection, can effectively protect boiler body not corroded.
Claims (7)
1. the boiler that has the flue gas condensing function of recovering waste heat, comprise steam generator and condensation waste-heat recovery device, in condensation waste-heat recovery device inside condensing heat exchanger and condensate collector are set, the outside thermal insulation layer that adopts, top arranges cold water inlet and the final floss hole of flue gas, the bottom is provided with hot water outlet and flue gas condensing liquid floss hole, it is characterized in that: the condensation waste-heat recovery device is arranged on the steam generator smoke outlet, form one with steam generator, the condensing heat exchanger below arranges some layers of condensate collector in the condensation waste-heat recovery device.
2. the boiler with flue gas condensing function of recovering waste heat according to claim 1, it is characterized in that: described steam generator is vertical steam generator.
3. the boiler with flue gas condensing function of recovering waste heat according to claim 1, it is characterized in that: the number of plies of described condensate collector setting is two layers.
4. the boiler with flue gas condensing function of recovering waste heat according to claim 1 is characterized in that: described condensate collector is spill.
5. the boiler with flue gas condensing function of recovering waste heat according to claim 1 is characterized in that: connecting blowoff line below the described condensate collector.
6. the boiler with flue gas condensing function of recovering waste heat according to claim 1 is characterized in that: described condensing heat exchanger heating surface adopts whole stainless steel helix fin tube bank.
7. the boiler with flue gas condensing function of recovering waste heat according to claim 6 is characterized in that: described whole stainless steel helix fin tube bank is equilateral triangle and is staggered in arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206447180U CN202902248U (en) | 2012-11-26 | 2012-11-26 | Boiler with flue gas condensed waste heat recovery function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206447180U CN202902248U (en) | 2012-11-26 | 2012-11-26 | Boiler with flue gas condensed waste heat recovery function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202902248U true CN202902248U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206447180U Expired - Lifetime CN202902248U (en) | 2012-11-26 | 2012-11-26 | Boiler with flue gas condensed waste heat recovery function |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090863A (en) * | 2016-07-21 | 2016-11-09 | 浙江上能锅炉有限公司 | High-efficient energy-saving steam generator |
| CN109974303A (en) * | 2019-04-16 | 2019-07-05 | 廊坊一萍锅炉保养工程有限公司 | A kind of gas-fired water heating boiler energy-saving appliance |
-
2012
- 2012-11-26 CN CN2012206447180U patent/CN202902248U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090863A (en) * | 2016-07-21 | 2016-11-09 | 浙江上能锅炉有限公司 | High-efficient energy-saving steam generator |
| CN109974303A (en) * | 2019-04-16 | 2019-07-05 | 廊坊一萍锅炉保养工程有限公司 | A kind of gas-fired water heating boiler energy-saving appliance |
| CN109974303B (en) * | 2019-04-16 | 2024-04-26 | 廊坊一萍锅炉保养工程有限公司 | Energy-saving device for gas-fired hot water boiler |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
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| CX01 | Expiry of patent term |